On 12/10/2017 14:27, Stefan Keller wrote: > 2017-10-12 11:43 GMT+02:00 Hugo Mercier <[email protected]>: >> On 12/10/2017 11:30, Stefan Keller wrote: > ... >> Support for hstore columns in qgis 3 for example could be reused in some > > Yes, I'm excited to hear that hstore type is part of QGIS 3. > >> And we would have to find a smart way to handle OSM relations. > > Agreed. BUT: there is still the topology to handle: > Importers convert certain ways and relations to lines and polygons > and throw away the node-id just keeping the coordinates/support points. > How would you store these node-ids?
If I had a RDBMS, I'll use editable views for that. On-the-fly geometries generated from nodes, ways and relations and triggers to make sure the whole topology is always respected. I don't have a solid solution yet, but virtual layers and/or geometry generators and/or a SQLite db may be a base for a first implementation. _______________________________________________ QGIS-Developer mailing list [email protected] List info: https://lists.osgeo.org/mailman/listinfo/qgis-developer Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-developer
